GB1000420A - Thermostatically controlled clutch mechanism - Google Patents
Thermostatically controlled clutch mechanismInfo
- Publication number
- GB1000420A GB1000420A GB43357/61A GB4335761A GB1000420A GB 1000420 A GB1000420 A GB 1000420A GB 43357/61 A GB43357/61 A GB 43357/61A GB 4335761 A GB4335761 A GB 4335761A GB 1000420 A GB1000420 A GB 1000420A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clutch
- band
- fan
- drum
- bimetallic strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
- F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches
- F01P7/082—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches using friction clutches
- F01P7/087—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches using friction clutches actuated directly by deformation of a thermostatic device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/25—Automatic clutches actuated entirely mechanically controlled by thermo-responsive elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
1,000,420. Friction clutches. BORGWARNER CORPORATION. Dec. 4, 1961, No. 43357/61. Heading F2C. A clutch for connecting the shaft 26 of a water impeller to a motor vehicle engine cooling fan 14 comprises a driving drum 34 fast with the impeller shaft and a radially expansible friction clutch band 16 mounted upon a driven hub 12 to which the fan is secured, a bimetallic clutch coil 18 connected between the hub and the clutch coil expanding with increasing temperature to engage the band with the drum. One end 60 of the clutch band 16 extends into a radial slot 61 in the clutch hub 12, while the other end 62 is provided with an axially extending projection 63 formed with an axial slot 64. The inner end of the bimetallic strip 18 is secured to a hub cap 68 fast with the fan 14, while a radially projecting tab 78 at the outer end of the bimetallic strip engages in the slot 64 in the axial projection 63. The fan 14 draws air through the radiator 88 of the engine driving the motor vehicle. On starting, the bimetallic strip 18 holds the clutch band 16 radially inwards of the drum 34, so that the fan 82 is rotated with the impeller shaft 26 only by friction within its mounting bearings 50. With increasing temperature, the bimetallic strip 18 expands the clutch band 16 into initial light engagement with the clutch drum 34. As the fan 14 is rotated with a progressively increasing speed, centrifugal force acts upon the clutch band 16 to engage it more firmly with the clutch drum 34, and a mechanical self-servo action caused by the mechanical drive tending to unwind the band increases the engaging force, until the fan rotates at the same speed as the impeller shaft 26. When the bimetallic strip 18 cools down, the band is rapidly restored to its contracted disengaged position, initial partial disengagement reducing the centrifugal force acting upon the band and thus assisting rapid completion of engagement. As shown, the clutch band 16 consists of a single coil, but in a modification, Fig. 4 (not shown), is formed by a double coil. Specification 1,000,419 is referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US863136A US3105580A (en) | 1959-12-31 | 1959-12-31 | Thermostatically controlled clutch |
| GB43357/61A GB1000420A (en) | 1961-12-04 | 1961-12-04 | Thermostatically controlled clutch mechanism |
| FR881129A FR1307618A (en) | 1959-12-31 | 1961-12-06 | Clutch controlled by thermostatic device, in particular for automobile fan |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB43357/61A GB1000420A (en) | 1961-12-04 | 1961-12-04 | Thermostatically controlled clutch mechanism |
| FR881129A FR1307618A (en) | 1959-12-31 | 1961-12-06 | Clutch controlled by thermostatic device, in particular for automobile fan |
| DEB65145A DE1221859B (en) | 1961-12-06 | 1961-12-12 | Thermostatically controlled safety clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1000420A true GB1000420A (en) | 1965-08-04 |
Family
ID=27625073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43357/61A Expired GB1000420A (en) | 1959-12-31 | 1961-12-04 | Thermostatically controlled clutch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1000420A (en) |
-
1961
- 1961-12-04 GB GB43357/61A patent/GB1000420A/en not_active Expired
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